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Finding the Fourth Proportional to 9,090.55, 13,629.75 and 7,337.71

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Solution

The fourth proportional to 9,090.55, 13,629.75 and 7,337.71 is: 11,001.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,090.55 : 13,629.75 = 7,337.71 : x
  2. Step 2: Convert to fraction form
    9,090.55/13,629.75 = 7,337.71/x
  3. Step 3: Cross multiply
    9,090.55x = 13,629.75 × 7,337.71
  4. Step 4: Simplify right side
    9,090.55x = 100,011,152.87
  5. Step 5: Solve for x
    x = 100,011,152.87/9,090.55
  6. Step 6: Final answer
    x = 11,001.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.